Community-based Off-Grid Solar Container DC Cooperation

What is a DC Community Grid (DCCG)?

Flexible and scalable configuration. Roof-top solar PV and battery systems at individual homes form standalone DC nanogrids to electrify off-grid remote locations. To improve the reliability and sustainability of these installations, interconnections are required, forming a DC Community Grid (DCCG).

What is a Community Grid?

Community grids can be AC, AC/DC hybrid, or DC grids which are given in literature . If all the AC appliances are replaced with DC, an energy saving of around 33% can be achieved . Also, the redundant AC-DC conversions cause about 14% loss .

Can a 380 V DC Community Grid be used in rural areas?

1. A novel topology for a 380 V DC Community Grid with 72 V DC homes has been developed, which is applicable to high power domestic loads (such as DC Air-Conditioners) in rural areas. The DC nanogrid homes are interconnected at 380 V reducing distribution losses and favoring integration to AC utility grid.

What is power flow management in DC nanogrid and Community Grid?

The power flow management in DC nanogrid and community grid decides the effectiveness of the system in delivering reliable power. Here, 72 V DC nanogrid homes are interconnected with 380 V DC bus to form a community grid.